Advanced Volume Calculations
Multi-zone trenching with support for vertical, battered, benched, and stepped walls. Calculate separate volumes for foundation, bed, haunch, side fill, and overlay zones with culvert integration.
Calculate trench quantities, costs & culvert layouts instantly
Built for the underserved field-engineering community, TrenchCalc™ helps site crews and engineers compute fill volumes, cement requirements, and project costs — with support for stepped benches and precise culvert spacing — right from your phone.
Why TrenchCalc?
TrenchCalc goes far beyond basic volume calculations. It's a complete project planning tool designed for civil engineers, site supervisors, and contractors who need professional-grade calculations in the field.
Cement Stabilization Intelligence
Predict UCS (Unconfined Compressive Strength) for cement-stabilized materials. Get 7-day and 28-day strength projections with material-specific coefficients based on ASTM standards.
Quality Control Testing Planner
Generate automated field testing schedules based on volume and specifications. Plan compaction tests, PSD/Atterberg limits, and moisture content testing by lift and zone.
Professional Cost Estimation
Complete project pricing with material, labor, equipment, mobilization, overhead, and profit calculations. Export-ready estimates for tender submissions.
Duration & Scheduling
Calculate project timelines based on productivity rates. Get phase breakdowns for mobilization, construction, culvert installation, and crew planning with estimated finish dates.
Truckload & Logistics Planning
Plan material deliveries with truckload calculations based on capacity. Optimize delivery schedules for fill, cement, and stabilized mix materials.
Save & Load Projects
Store unlimited project configurations with named saves. Instantly recall complete trench setups and manage multiple projects simultaneously—no spreadsheet juggling.
Professional Export
Generate PDF and CSV reports with comprehensive material breakdowns, cost estimates, and testing schedules. Share directly from the app for project documentation.
Smart Material Management
6 preset materials with industry-standard properties. Assign different materials per zone with automatic density and compaction factor calculations for loose/compacted conversion.
What Sets TrenchCalc Apart
Engineering Intelligence: Not just formulas—understands civil engineering workflows and industry standards (ASTM, ACI, Austroads)
Complete Planning: Volume + Time + Cost + Quality + Logistics in one app
Multi-Zone Sophistication: 7 distinct zones with different materials, geometries, and cement stabilization per zone
Field-Ready: Works offline, fast input, visual aids, and safety warnings built-in
Professional Standards: Based on ASTM D6103, ACI 230.1R, and other recognized codes
Cross-Platform: Available on iOS and Android with cloud sync via AWS Cognito
3D LiDAR Scanning
Real-time AR scanning with interactive 3D visualization, coverage heat maps, and AR guidance overlays for complete trench capture.
Photogrammetry
Convert photos into accurate 3D models with DSM/DTM volume calculations. Professional-grade processing with ±1-3cm accuracy.
Smart Object Detection
Automatically detect pipes, headwalls, and shoring to calculate accurate net backfill volumes—saves thousands per project.
Cement Stabilization
Calculate cement requirements with UCS (Unconfined Compressive Strength) predictions for 7-day and 28-day strength.
Volume Calculations
Accurate trench volume calculations with stepped benches, multiple zones, and culvert support for complex configurations.
Photo Documentation
Organized photo management with GPS tagging, 28+ pre-built tags, AI enhancement (deblur, sharpen, brighten), and OSHA-compliant reporting.
Logistics Planning
Truckload calculator for material delivery planning. Calculate loads by volume or mass for fill material, cement, and stabilized mix.
Team Collaboration
Voice punchlist with team management, real-time sync, role-based permissions, and collaborative comments for project tracking.
Cost Estimation
Comprehensive cost breakdowns for materials, cement, truckloads, and total project costs with professional reporting.
Quality Testing Schedules
Generate professional testing schedules for cement stabilization projects with compliance-ready documentation.
Interactive Measurements
3D measurement tools for distance, angle, area, volume, slope, and cross-section analysis directly on scanned point clouds.
Works Offline
All core calculations work offline. Cloud sync for photos and team data when connected.
How it works
Enter trench dimensions
Depth, length, base/trapezoid widths, benching, culverts.
Select configuration
Choose options for benches and spacing as needed.
Get results instantly
Volume + cement estimates with clear units.
See How Much Time You'll Save
Calculate how much faster TrenchCalc is compared to manual methods
calculations
minutes
Helps ensure you're getting accurate estimates and avoid overpaying
125
Minutes Saved / Month
2
Hours Saved / Month
24
Hours Saved / Year
60
Calculations / Year
* Calculations assume TrenchCalc reduces calculation time to 5 minutes per project. Actual time savings may vary based on project complexity and user experience.
What Our Users Say
"
Used to spend hours on spreadsheets. Now I get accurate volumes and cement requirements in minutes. The UCS predictions are spot-on.
AT
Alex Thompson
Field Engineer
"
The photogrammetry feature saved us thousands on one project by catching volume discrepancies before pouring. Pays for itself.
JW
Jamie Wilson
Project Manager
"
Works offline, which is crucial for remote sites. No more phone calls back to the office asking for calculations.
RS
Rob Sanchez
Site Supervisor
See TrenchCalc in Action
Explore the interface and features that make trench calculations simple and accurate
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Main Calculator
Main Calculator
Main Calculator
Intuitive input for all trench dimensions
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Volume Results
Volume Results
Volume Results
Instant calculations with clear breakdowns
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Cement Stabilization
Cement Stabilization
Cement Stabilization
UCS predictions and mix design
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Cost Estimation
Cost Estimation
Cost Estimation
Professional project pricing
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Project Manager
Project Manager
Project Manager
Save and organize your calculations
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PDF Export
PDF Export
PDF Export
Generate professional reports
About EngSiteTools
We create simple, accurate, and affordable tools for field engineers, site crews, and small contractors. TrenchCalc is our flagship; more field-ready utilities are on the way.
Contact Us
Have a question about TrenchCalc? Send us a message and we'll get back to you as soon as possible.
Email us directly:
Ready to streamline your trench calculations?
Download TrenchCalc today and start saving time on every project.